Electronic device including flexible display and content display method thereof

Abstract

An electronic device includes a main body; a flexible display to be rolled up and placed in the main body; a sensor configured to detect unrolling of the flexible display; and a controller configured. The controller is configured to control the flexible display to present information while the flexible display is exposed from the main body, and, based on detecting the flexible display being rolled into the main body while the information is presented, control to change a presentation position of the information on the flexible display according to the rolling of the flexible display.

What is claimed is: 
     
       1. An electronic device comprising:
 a main body; 
 a flexible display to be rolled up, wherein the rolled-up flexible display is placed in the main body; 
 a sensor configured to detect unrolling of the flexible display; and 
 a controller configured to:
 control the flexible display to present information while the flexible display is exposed from the main body, and 
 based on detecting the flexible display being rolled into the main body while the information is presented, control to change a presentation position of the information on the flexible display according to the rolling of the flexible display, wherein the controller is further configured to: 
 
 determine a speed of the rolling of the flexible display based on a signal output from the sensor,
 determine a speed of the moving the presentation position based on the speed of the rolling, and 
 determine a number of pixels for moving the presentation position based on a refresh rate in combination with the speed of the rolling. 
 
 
     
     
       2. The electronic device according to  claim 1 , further comprising:
 a motor; and 
 a driver configured to drive the motor to roll the flexible display into the main body, 
 wherein the controller controls the driver and the motor. 
 
     
     
       3. The electronic device according to  claim 1 , wherein the controller is further configured to determine an amount of rolling of the flexible display based on the signal output from the sensor, and to determine an amount of the changing of the presentation position of the information based on the determined amount of the rolling. 
     
     
       4. The electronic device according to  claim 1 , wherein, in response to the flexible display being rolled, the controller controls the flexible display to change the presentation position of the information displayed on the flexible display in an opposite direction to a direction in which the flexible display is being rolled, and to display a black screen on an area of the flexible display which has been rolled inside the main body. 
     
     
       5. The electronic device according to  claim 1 , wherein, in response to the flexible display being rolled, the controller changes the presentation position of the information displayed on the flexible display in an opposite direction to a direction in which the flexible display is being rolled, and turns off an area of the flexible display which has been rolled inside the main body. 
     
     
       6. A content display method of an electronic device, the content display method comprising:
 presenting information on a flexible display while the flexible display is exposed from a main body of the electronic device; 
 detecting the flexible display being rolled into the main body while the information is presented; and 
 changing a presentation position of the information on the flexible display according to the rolling of the flexible display,. 
 wherein the changing the presentation position further comprises:
 determining a speed of the rolling of the flexible display based on a signal output from a sensor, 
 determining a speed of the moving the presentation position based on the speed of the rolling, and 
 determining a number of pixels for moving the presentation position based on a refresh rate in combination with the speed of the rolling. 
 
 
     
     
       7. The content display method according to  claim 6 , further comprising:
 determining an amount of the rolling of the flexible display; and 
 determining an amount of the changing of the presentation position of the information based on the determined amount of the rolling. 
 
     
     
       8. The content display method according to  claim 6 , wherein the changing comprises changing the presentation position of the information displayed on the flexible display in an opposite direction to a direction in which the flexible display is being rolled. 
     
     
       9. The content display method according to  claim 8 , further comprising displaying a black screen on an area of the flexible display which is inside the main body. 
     
     
       10. The content display method according to  claim 8 , further comprising turning off an area of the flexible display which is inside the main body.